He is unworthy to live who lives only for himself.
只为自己活着的人，不值得活在世上。
The past is not a shadow but a living presence.
Your self-worth is determined by you. You don't have to depend on someone telling you who you are.
书籍是灵魂的镜子。
解决复杂问题的关键在于将它们分解成更小、更易管理的部分。
真正的进步发生在我们停止为过去优化，开始为未来建设之时。
解读：人生起点、境遇常非自主选择，既然无法更改出身等既定事实，那就积极应对，凭借自身努力在既有条件下创造精彩，发挥主观能动性。
The best way to predict the future is to create it.